my @row = @{$_};
my $class = (
!defined $row[2] || $row[0] eq $row[2] ? 1 # identical
+ : $row[2] =~ /\A\p{Mn}+\z/ ? 8 # combining accent
: NFKD($row[2]) =~ $row[0] ? 2 # decomposed equivalent
: $row[2] =~ /^\p{Latin}/ ? 4 # latin script
: unidecode($row[2]) =~ /^\W*\Q$row[0]/ ? 5 # transliterated
- : $row[2] =~ /^\p{Mn}/ ? 8 # combining accent
: 7
);
$row[0] => "g$class"
g1 => ['unaltered'],
g2 => ['accented'],
g4 => ['latin'],
+ g5 => ['similar'],
g7 => ['other'],
g8 => ['combining'],
},